/**
 * @ClassName:
 * @author:
 * @Description:
 * @Date
 **/
public interface Map<K, V> {
    void add(K key, V value);

    V remove(K key);

    boolean contains(K key);

    V get(K key);

    void set(K k, V newValue);

    int getSize();

    boolean isEmpty();
}
